package zuoye41;

public class StaticDemo {
    // 静态变量，用于计数类的实例创建次数
    static int count = 0;
    // 实例变量，用于存储每个实例的唯一编号
    int id;

    // 静态初始化块
    static {
        System.out.println("Static block executed");
        count = 0;
    }

    // 实例初始化块
    {
        System.out.println("Instance block executed");
        id = count;
        count++;
    }

    // 构造函数
    public StaticDemo() {
        System.out.println("Constructor executed for ID: " + id);
    }

    // 静态方法，用于打印当前创建了多少个实例
    public static void displayCount() {
        System.out.println("Total instances created: " + count);
    }
}
